Improved boot-crimpino- machine



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` WILLIAM R. DUNN, OF ALTON, INDIANA.

Leners Patent N0'..s9,e4o, dated May 4, 1869.

IIWPROVED BOO'T-CRIMPING MACHINE.

.that the following is a full, clear, and exact description ef the construction and operation of the saine, reference being had to the annexed drawings,imaking a part of this specification, in which- 'Figure 1 is a perspective view. Figure 2, side view, showing hinged lever and guidebars, the lever crooked, or in a crimp form. v-

Figure 3, end view, showing position of lever and guide-bars, with the pressure-plates.

Figure 4-showing lever-hinge straight. The pressure-plates A A are stationary to the base, B. The crimping-plate, o r lever O, is hinged to the pressure-plates .A A at letter g, and guided by the bars D D, attached to the lever at K by a rod, m, fig. 3, passing through the lever, and fastened byscrews, and to the pressure-plates A A at ff, by pins fastened in the plates.

The lever is hinged at E. The centre guide-bar F is hinged to the lever at g, and fastens at R by a spring-latch, s.

' The pressure-plates A A are tightened by screw G.

The crimp is fastened to lever C by crimp-screw H.

The boot-front being sufficiently wet, is placed on the lever O, the corners fastened by the crimp-screw H. The pressure-plates A A tightenedhy screw G bearing down on the lever O, force,the leather between the plates A A, not bending sufficiently to formwrinkies. The pressure-plates prevent wrinkles after itis hidden, causing but little strain on the leather. The

lever is pressed down until it latches to the bar F.

The crimp is then made. Loose the screw G, re-

move the guide-bars D D fromvpins f f, tighten crimpscrew H, raise the lever C to position of fig. 2, place the guide-bars D D on pins f f, and let remain untilI dry.

I do not claim the pressure-plates A A, base, B, nor

crimp-screw H, for they have been used in various patterns of crimping-machines; but

I claiml. The hinge E, in connection with lever O, rod m,

guide-bars D D and F, andv pins ff, or any other device substantially the saine.

2. The latch s, in connection with the lever O and guide-bar F, or their equivalent-s.

' WILLIAM R. DUNN.

Witnesses:

A. K. RICE, y A. P. Itluromit 

